Confirm this item fits
Add your vehicle details to make sure this item fits.
1988-91 Cr250 Big Bore Cylinder
$300.00
Was $500.00
(40% off)
Want extra peace of mind? Even if a seller doesn't offer returns,
MX Locker gives you the option to make any item returnable with Return Assurance at checkout.
Want extra peace of mind? Even if a seller doesn't offer returns,
MX Locker gives you the option to make any item returnable with Return Assurance at checkout.
MX Locker is 100% committed to ensuring that every sale ends in satisfaction—for both buyer and seller. Your payment is held until the item is delivered and approved. If it's not as described, you'll receive a full refund.
Every transaction is backed by our secure payment system. We hold funds until you confirm the item arrived in the promised condition—so you can shop worry-free.
MX Locker is 100% committed to ensuring that every sale ends in satisfaction—for both buyer and seller. Your payment is held until the item is delivered and approved. If it's not as described, you'll receive a full refund.
Every transaction is backed by our secure payment system. We hold funds until you confirm the item arrived in the promised condition—so you can shop worry-free.
Overview
Description
1988-91 Cr 250 big bore 300 Excellent condition for its age built by klem research in 1990 no power valve sealed off custom wisco piston probably still available not sure I left the head on as it requires a custom bored out gasket that would have to be modified it’s ported out extensively the piston has some wear but was running fine before tear down this thing is fast you have to run richer jetting and ritch mix for best results Shipping lower 48 only
Compatible with 4 Honda vehicle(s)Meet The Seller
Responds within 3 hours.
Ships within 3 business days.
Items match their descriptions.
Need help? We're riders just like you.
By clicking subscribe, I agree to receive exclusive offers & promotions, news & reviews, and personalized tips for buying and selling on MX Locker.
MX Locker © 2025 Accessibility